<template>
    <header class="header">
            <!-- 头部的第一行 -->
            <div class="top">
                <div class="container">
                    <div class="loginList">
                        <p>尚品汇欢迎您！</p>
                        <p>
                            <span v-if="!userInfo.nickName">请</span>
                            <span v-if="userInfo.nickName">{{userInfo.nickName}}</span>
                            <a v-if="userInfo.nickName" @click="loginOut">&nbsp;&nbsp;退出登录</a>
                            <router-link to="/login" v-if="!userInfo.nickName">登录</router-link>
                            <router-link to="/register" class="register" v-if="!userInfo.nickName">免费注册</router-link>
                        </p>
                    </div>
                    <div class="typeList">
                        <router-link to="/ordercenter">我的订单</router-link>
                        <router-link to="/shopcart">我的购物车</router-link>
                        <a href="###">我的尚品汇</a>
                        <a href="###">尚品汇会员</a>
                        <a href="###">企业采购</a>
                        <a href="###">关注尚品汇</a>
                        <a href="###">合作招商</a>
                        <a href="###">商家后台</a>
                    </div>
                </div>
            </div>
            <!--头部第二行 搜索区域-->
            <div class="bottom">
                <h1 class="logoArea">
                    <router-link to="/home" class="logo" title="尚品汇" >
                        <img src="./images/logo.png" alt="">
                    </router-link>
                </h1>
                <div class="searchArea">
                    <form action="###" class="searchForm">
                        <input type="text" id="autocomplete" v-model="search" class="input-error input-xxlarge" />
                        <button class="sui-btn btn-xlarge btn-danger" type="button" @click="goSearch">搜索</button>
                    </form>
                </div>
            </div>
    </header>
    
</template>
<script>
import {mapState} from 'vuex'
export default {
    name:'Header',
    computed:{
      ...mapState({userInfo:(state)=>{
          return state.login .userInfo
      }})  
    },
    //检查路由相当于 全局路由守卫
    watch:{
        // $route(){
        //    console.log('监听')
        //    this.$store.dispatch('userInfo')
        // }
    },
    data(){
        return{
            search:''
        }
    },
    methods:{
        goSearch(){
            this.$router.push({name:'search',params:{keyword:this.search||undefined},query:this.$route.query})
        },
       async loginOut(){
            try{
                await this.$store.dispatch('loginOut')
                this.$router.push('/login')
            }catch(error){
                alert(error)
            }
               
        }
         
    },
    mounted(){
        this.$bus.$on("empty",(value)=>{
            this.search=value
        })
        
    },
    beforeDestroy(){
        this.$bus.$off('empty')
    }
}
</script>
<style   lang='less' scoped>
.header {
        &>.top {
            background-color: #eaeaea;
            height: 30px;
            line-height: 30px;

            .container {
                width: 1200px;
                margin: 0 auto;
                overflow: hidden;

                .loginList {
                    float: left;

                    p {
                        float: left;
                        margin-right: 10px;

                        .register {
                            border-left: 1px solid #b3aeae;
                            padding: 0 5px;
                            margin-left: 5px;
                        }
                    }
                }

                .typeList {
                    float: right;

                    a {
                        padding: 0 10px;

                        &+a {
                            border-left: 1px solid #b3aeae;
                        }
                    }

                }

            }
        }

        &>.bottom {
            width: 1200px;
            margin: 0 auto;
            overflow: hidden;

            .logoArea {
                float: left;

                .logo {
                    img {
                        width: 175px;
                        margin: 25px 45px;
                    }
                }
            }

            .searchArea {
                float: right;
                margin-top: 35px;

                .searchForm {
                    overflow: hidden;

                    input {
                        box-sizing: border-box;
                        width: 490px;
                        height: 32px;
                        padding: 0px 4px;
                        border: 2px solid #ea4a36;
                        float: left;

                        &:focus {
                            outline: none;
                        }
                    }

                    button {
                        height: 32px;
                        width: 68px;
                        background-color: #ea4a36;
                        border: none;
                        color: #fff;
                        float: left;
                        cursor: pointer;

                        &:focus {
                            outline: none;
                        }
                    }
                }
            }
        }
    }
</style>